In order to find the spinner that has a probability of 1/4 of landing on white, we need to look for the figure that has a white area equal to 1/4 of the total circle area.
One-fourth of a circle is equal to an arc of 90°, or half a semi-circle.
Looking at the images, the figure that has a white area of 1/4 of the total area is Desmond's Spinner.
Correct option: C.